Water, pH and Macromolecules The lone pair electrons on oxygen in a H20 molecule carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice carry a partial negative charge are not important for the properties of water carry a partial positive charge form covalent bonds in ice ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Who discovered and described the blood groups (ABO) classification? Karl Landsteiner Otto Warburg Karl Hooper Theodor Kocher Karl Landsteiner Otto Warburg Karl Hooper Theodor Kocher ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules The strength of an acid depends on electronegativity number of double bonds number of neutrons gain number of protons released electronegativity number of double bonds number of neutrons gain number of protons released ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about water is correct? Nonpolar substances like oils are not soluble in it Polar substances that can form hydrogen bonds will dissolve in it It is critical for many of the chemical processes found in living systems All of these Nonpolar substances like oils are not soluble in it Polar substances that can form hydrogen bonds will dissolve in it It is critical for many of the chemical processes found in living systems All of these ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules Which of the following statements about covalently bonded molecules is false? Noncovalent bonds may also be present, especially if the molecule is large The chemical bonds that hold the molecule together are relatively strong Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule Noncovalent bonds may also be present, especially if the molecule is large The chemical bonds that hold the molecule together are relatively strong Such molecules often result from the interaction of ionized atoms Electrons are shared between the atoms that make up the molecule ANSWER DOWNLOAD EXAMIANS APP
Water, pH and Macromolecules A solution with pH = 5 is __________ than a solution with pH = 7. 10 times more acidic 100 times more acidic 10 times more basic 2 times more basic 10 times more acidic 100 times more acidic 10 times more basic 2 times more basic ANSWER DOWNLOAD EXAMIANS APP
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